Billionth
num. 第十亿个, 十亿分之一
🗣️ 情景例句
About the quality of 500 cartons of tin food we ordered last time.
是关于我们上次定购的500箱罐头食品的质量问题。
One penny witgh right is better than a thousand without right.
合法得来一个钱，胜过非法钱一千。
he had great difficulty in controlling the car because a tyre burst during the first run.
但他很难把汽车控制住，因为在开始的行程中爆了一只轮胎。